摘要
通过高级氧化技术降解,去除水中的双酚A污染物。选取不同锰氧化物为催化剂,研究其活化过一硫酸盐降解有机污染物双酚A的反应过程、活性物种、降解效率和机理机制。通过X射线衍射(XRD)、傅里叶红外光谱(FT-IR)的表征手段判断合成的不同价态的锰氧化合物固体催化材料的结构组成和形貌特点。研究催化剂对双酚A的降解过程,通过控制催化剂用量、PMS用量、BPA浓度等因素,推断催化降解过程的规律。结果表明,经Mn2O3活化的PMS降解BPA性能较MnO2的性能更优。通过控制反应物的用量,得出最佳的氧化降解条件为Mn2O3用量为0.20 g/L、PMS用量为0.0312 g/L。锰氧化物活化过一硫酸盐体系中形成了高级氧化物,并且对BPA的降解性能优异。
To degrade and remove bisphenol A(BPA)contaminants in water through advanced oxidation technology,different manganese oxides were selected as catalysts to study the reaction process,active species,degradation efficiency,and mechanism of the catalytic degradation of organic pollutant bisphenol A by persulfate activated by manganese oxides.The structural composition and morphological characteristics of the solid catalytic materials synthesized with different valence manganese oxides were characterized by X-ray diffraction(XRD)and Fourier transform infrared spectroscopy(FT-IR).The degradation process of BPA by the catalyst was studied,and the degradation process was inferred by controlling the amount of catalyst,PMS,and BPA concentration.The results show that the performance of Mn2O3 in activating PMS to degrade BPA is better than that of MnO2.The optimal oxidative degradation conditions were obtained by controlling the amounts of the reactants, with Mn2O3 at 0.20 g/L and PMS at 0.031 2 g/L. Advanced oxides were formed in the manganese oxide-activated persulfate system, and the degradation performance of BPA was excellent.
作者
李静
徐宝森
李保宁
LI Jing;XU Bao-sen;LI Bao-ning(School of Chemistry and Chemical Engineering,Yulin University,Yulin719000,Shaanxi)
出处
《商洛学院学报》
2024年第6期63-67,共5页
Journal of Shangluo University
基金
陕西省基础科学研究院基础科学研究计划青年项目(22JHQ034)
榆林学院本科教学改革研究项目(JG2423)
榆林学院本科教学团队项目(JGTD2401)。
关键词
锰氧化物
过一硫酸盐
双酚A
manganese oxide
permonosulfate
bisphenol A
